From 2b1f1af17f8e8f199cb0dd4f7f1a225529b357c5 Mon Sep 17 00:00:00 2001
From: Chia-I Wu <olv@lunarg.com>
Date: Mon, 11 Oct 2010 16:06:47 +0800
Subject: android: Add DRM-based gralloc.

---
 src/gralloc/gralloc_gem.h | 77 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 src/gralloc/gralloc_gem.h

(limited to 'src/gralloc/gralloc_gem.h')

diff --git a/src/gralloc/gralloc_gem.h b/src/gralloc/gralloc_gem.h
new file mode 100644
index 0000000000..e6ef176efa
--- /dev/null
+++ b/src/gralloc/gralloc_gem.h
@@ -0,0 +1,77 @@
+#ifndef _GRALLOC_GEM_H_
+#define _GRALLOC_GEM_H_
+
+#include <cutils/native_handle.h>
+#include "gralloc_mod.h"
+
+struct drm_bo_t {
+   native_handle_t base;
+
+#define DRM_HANDLE_MAGIC 0x12345678
+#define DRM_HANDLE_NUM_INTS 11
+#define DRM_HANDLE_NUM_FDS 0
+   int magic;
+
+   int width;
+   int height;
+   int format;
+   int usage;
+
+   int name;
+   int stride;
+
+   /* these fields are undefined until validated */
+   int pid;
+   int fb_handle;
+   int fb_id;
+   int data; /* pointer as int? 32-bit only! */
+};
+
+int
+drm_gem_init(struct drm_module_t *drm);
+
+int
+drm_gem_get_magic(struct drm_module_t *drm, int32_t *magic);
+
+int
+drm_gem_auth_magic(struct drm_module_t *drm, int32_t magic);
+
+static inline struct drm_bo_t *
+drm_gem_get(buffer_handle_t handle)
+{
+   struct drm_bo_t *bo = (struct drm_bo_t *) handle;
+
+   if (bo->base.version != sizeof(bo->base) ||
+       bo->base.numInts != DRM_HANDLE_NUM_INTS ||
+       bo->base.numFds != DRM_HANDLE_NUM_FDS ||
+       bo->magic != DRM_HANDLE_MAGIC)
+      bo = NULL;
+
+   return bo;
+}
+
+struct drm_bo_t *
+drm_gem_validate(buffer_handle_t handle);
+
+struct drm_bo_t *
+drm_gem_create_bo(int width, int height, int format, int usage);
+
+
+int
+drm_gem_drv_init(struct drm_module_t *drm);
+
+struct drm_bo_t *
+drm_gem_drv_alloc(struct drm_module_t *drm, int width, int height,
+                  int format, int usage, int *stride);
+
+void
+drm_gem_drv_free(struct drm_module_t *drm, struct drm_bo_t *bo);
+
+int
+drm_gem_drv_map(struct drm_module_t *drm, struct drm_bo_t *bo,
+                int x, int y, int w, int h, int enable_write, void **addr);
+
+void
+drm_gem_drv_unmap(struct drm_module_t *drm, struct drm_bo_t *bo);
+
+#endif /* _GRALLOC_GEM_H_ */
-- 
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